Full export by URL is no longer supported.

README.md

@@ -29,8 +29,10 @@ email databases to anyone.
 
     ./manage.py import nm-mock.json
 
-If you are a Front Desk member or a DAM, you can use
-https://nm.debian.org/am/db-export?full for a full database export.
+If you are a Front Desk member or a DAM and want a full database export, you
+need to use
+
+    ./manage.py export --full
 
 ### Reset database
     rm data/db-used-for-development.sqlite